Galileo Galilei was an Italian physicist and astronomer (1564–1642) .
In the aerospace industry, Galileo is a global satellite navigation system that is operated by the European Union and the European Space Agency (ESA).
Galileo is a rival to the United States' GPS (Global Positioning System) and Russia's GLONASS (Global Navigation Satellite System). The Galileo system consists of a network of 30 satellites that are positioned in orbit around the Earth, and ground-based infrastructure that is used to support the operation of the system.
Galileo is used to provide positioning, navigation, and timing services to a wide range of users, including governments, military organizations, and commercial companies. It is used in a variety of aerospace applications, including aviation, maritime navigation, and land-based navigation. Galileo is known for its high accuracy and its ability to provide reliable navigation and positioning services in a variety of environments, including urban and remote locations.